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Hepatic and Biliary dysfunction Hepatic and Biliary dysfunction

Hepatic and Biliary dysfunction - PowerPoint Presentation

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Hepatic and Biliary dysfunction - PPT Presentation

Diagnostic and clinical manifestations Hepatic disorders Pancreatic disorders The nursing processes Functions of the liver It receives nutrientsrich blood from GIT It stores transforms these nutrients into chemicals to be used by the body ID: 629996

liver amp blood hepatic amp liver hepatic blood management bleeding cirrhosis serum portal encephalopathy ammonia ascites jaundice bile medical bilirubin increased fluid

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Slide1

Hepatic and Biliary dysfunction

Diagnostic and clinical manifestations

Hepatic disorders

Pancreatic disorders

The nursing processesSlide2

Functions of the liver

It receives nutrients-rich blood from GIT

It stores, transforms these nutrients into chemicals to be used by the body

Regulates glucose and protein metabolism

Manufactures and secretes bile for the digestion of fat

Removes waste products and secretes them into bile

The bile produced is stored in the gallbladder

Ammonia conversion: as a result of gluconeogenesis

Vitamins & iron storage

Bile formation

Drug metabolism Slide3

Anatomy & location

Behinds the ribs, in the upper portion of the abdominal cavity

Weighs 1200-1800 g

Divided into 4 lobes, separated by a thin layer of connective tissues; dividing the liver into small functional units, lobules

80% of blood supply comes from portal vein; the remainder from hepatic artery –rich in Oxygen

hepatic capillaries—sinusoids of liver—venules—composing the central vein—join to form the hepatic vein

Phagocytic cells, Kuffer cells are present in the liver Slide4

Anatomy & location

Canaliculi receives bile from hepatocytes—to a larger bile duct—to form the hepatic duct.

Hepatic duct joins the cystic duct from gallbladder to form the common bile duct—that empties into small intestine

Sphincter of Oddi, in the duodenum, control the flow of bile Slide5

Bile formation

Secreted by hepatocytes

Composed of water & electrolytes, lecthin, fatty acids, cholesterol, bilirubin.

Bile is synthesized from cholesterol after conjugation with amino acids (taurine& glycine)----required for emulsification of fats

Bilirubin is derived from moglobin then, conjugated which become more soluble ,

The conjugated bilirubin is secreted by hepatocytes and carried out in bile into duodenum.

In small intestine, it is converted into urobilinogen –excreted by feces or some is reabsorbed into portal circulation , some enter the systemic circulation and by kidneys.

Bilirubin increased in blood; in liver disease, gall bladder disese, destruction of RBCsSlide6

Hepatic dysfunction

Diagnostic evaluation

Liver function test

70% of parenchyma may be damaged before abnormal findings appear

Function is measured as serum enzymes:

Aminotransferase; alkaline phosphate; lactic dehydrogenase---released by liver cells damage --liver injury

Serum proteins: albumin & globulins, ammonia---liver impairment

Clotting factors and lipids; prothrombin time---liver cells damage

Bilirubin: liver and biliary tract disease, JaundiceSlide7

Diagnostic evaluation

Liver biopsy: Table 39-1, P 1290.

Obtain a sample of liver tissue via needle aspiration

Indications: diffuse disorders of the parenchyma

Major complications: bleeding, bile peritonitis---obtain coagulation studies before biopsy

Liver biopsy can be performed:

Percutaneously under ultrasound guidance

If ascites or coagulation abnormalities; other techniques are preferred

Transvenously through right internal jugular vein-to-right-hepatic vein under fluroscopic control

Other diagnostic tests: CT; MRI

Laboroscopy: insertion of fiberobtic endoscope via small abdominal incision to examine liver and pelvic structure; To obtain biopsy Slide8

Manifestation of hepatic dysfunction

Hepatic dysfunction results from primary liver disease, or

Indirectly: obstruction of bile flow; derangement of hepatic circulation

Can be acute or chronic; chronic is more common—chronic:

Liver cirrhosis—40% of deaths associate alcohol use

Uncommon, compensated and subclinical Cirrhoses ; often goes undetected

Causes of hepatocellular dysfunction: infectious agents, anoxia, metabolic disorder, nutritional deficiencies-alcohol related

Parenchymal damage: Noxious agents—liver cells replace glycogen with lipids—producing fatty infiltration—cell death or necrosis

Manifestations: jaundice, portal hyertension, ascites and varices, nutritional deficiencies and hepatic encephalopathy. Slide9

Most common clinical manifestations

Jaundice

Jaundice: abnormal elevation of bilirubin (exceeds 2.5 mg/dL)

Body tissues, including skin & sclerae, become tinged or greenish-yellow

Increased serum bilirubin may result from impairment of hepatic uptake, conjugation, excretion of bilirubin into biliary system

There are different types of jaundice:

Hemolytic Jaundice:

An increased destruction of the red blood cells—the liver can not excrete

Occurs in hemolytic disorders; transfusion reaction

The bilirubin ,in blood, is unconjugated or free

Fecal & urine urobilinogen are increased; urine is free from bilirubin

May have no symptoms, however, if exceeds 20-25 mg/dL---predispose brainstem damage; prolonged mild jaundice-- gallbladder stone; severe jaundiceSlide10

Most common clinical manifestations

Jaundice

Obstructive Jaundice:

Results from extra-hepatic obstruction due to gallbladder enlargement

Intra-hepatic obstruction: pressure on bile ducts within the liver; by inflammatory swelling of the liver or from

Stasis and inspissation (thickening) of bile within canaliculi-obstruction—after ingestion of medications: Phenothiazines, antithyroid, Sulfonylurea, tricyclic antidepressant…

In obstruction—bile can not flow into intestines—backed up in the liver---reabsorbed into blood—staining skin, mucous membrane, sclerae; stool become clay colored;excreted in the urine—becomes orange and foamy

Skin—severely itching requires soothing bath

Dyspepsia and intolerance to fatty foods

Serum bilirubin and alkaline phosphate are elevated Slide11

Most common clinical manifestations

Hepatocellular Jaundice

Damaged liver cells are unable to clear bilirubin from blood

Causes of damage: hepatitis viruses, medications, chemical toxins, alcohol

Cirrhosis of liver is a form of hepatocellular disease that produces jaundice; associate excessive alcohol use

Patients may experience mild or severe illness

Associated manifestations: loss of appetite, nausea, fatigue, possible weight loss

Serum bilirubin and urine urobilinogen may be elevated

If the cause is infection, patients may report headache and fever

May be completely reversible depending on the cause and extent of damage Slide12

Most common clinical manifestations

Hereditary hyperbilirubinemia

Results from several inherited disorders, Gilbert’s syndrome---increased un-conjugated serum bilirubin

Liver histology and function are normal

No hemolysisSlide13

Most common clinical manifestations

Portal Hypertension

Increased pressure in the portal venous system

Associates damaged liver that causes obstruction of blood flow

It associates hepatic cirrhosis; although occurs with non-cirrhotic liver

Manifestations: splenomegaly

Consequences: ascites and varicesSlide14

Ascites

Contributing factors:

Damaged liver—portal hypertension—increased capillary pressure & obstruction of venous blood flow

Vasodilation in the splanchnic circulation

Failure of the liver to metabolize Aldosterone—Na & water retention with:

Increased intravascular fluid volume

Increased lymphatic flow

Decreased synthesis of albumin

All contribute to movement of intravascular fluid into peritoneal space

Fluid in the peritoneal space—further retention; Na & water retension

Albumin-rich fluid moves into peritoneal space; 15 LSlide15

Ascites

assessment and clinical manifestations

Flank bulges with supine position

Percussion dullness and fluid shifting

Measure abdominal girth and weight daily to assess progress

Manifestations:

Increased abdominal girth

Shortness of breath; patients feel uncomfortable

Striae & distended vein may be visible

Fluid & electrolytes imbalances Slide16

Ascites

nursing and medical management

Dietary modifications: negative sodium balance to reduce retention

Avoid salty foods; low-sodium diets (2g sodium) is recommended

Substitute salts with lemon juice

Avoid substitutes that cause Ammonia;

Avoid substitutes that contain K if the patient has renal impairment

May reduce Na intake to 500 mg

If no responses with Na restriction; diureticsSlide17

Ascites

nursing and medical management

Diuretics:

Sodium restriction + diuretics are successful in 90%

First line: Spironolactone (Aldactone)

Is an aldosterone blocking agent

For ascites from cirrhosis

Preserves K

Furosemide (Lasix); may be added

Long-term use may induce hyopnatremiaSlide18

Ascites

nursing and medical management

Diuretics:

Ammonium chloride & Acetazolamide (Diamox) may precipitate hepatic coma—contraindicated

Daily weight loss should not exceed 1-2Kg in patient with ascites and edema; 0.5-0.75 in patients without edema

No fluid restriction unless serum Na is very low

Complications of diuretics:

Fluid & electrolytes disturbances;

Encephalopathy from dehydration and hypovolemia;

Impaired cerebral functioning when K is very low and serum ammonia increased

Slide19

Ascites

nursing and medical management

Bed rest:

Upright posture—activation of renin-angiotensin-aldosterone system & sympathetic nervous system—reduced glomerular filtration & Na excretion—decreased response to loop diuretics

Bed rest is useful for those refractory to diuretics Slide20

Ascites

nursing and medical management

Paracentesis: removal of fluid from peritoneal cavity via a puncture/small incision in the abdominal wall

Ultrasound guidance may be indicated in patients with abnormalities: coagulation, adhesions

Is currently performed for diagnostic purposes; in massive ascites—refractory to nutritional and diuretic therapy

Ascitic fluid for: cell count, albumin and proteins, culture

Removal of 5-6 liters is a safe procedure + IV infusion of salt-poor Albumin/other colloids is a standard management approach

Albumin infusion helps to correct decrease in effective arterial blood volume

Read guidelines for assisting patients with paracentesis (P 1126, Chart 39-3). Transjugular intrahepatic portosystemic shunt. Slide21

Nursing management

home & community based care

For hospitalized: Assessment of fluid status; intake & output; abdominal girth; daily Wt.

Assessment of electrolytes balance: serum ammonia, electrolytes, indications of encephalopathy

Teaching self-care:

Avoid alcohol intake

Adhere to low sodium diet, medications

Skin care and the need for daily Wt.

To report sign & symptoms of complications

Assess home environment & resources available

Assessment of adherence to treatment plan

Keep up with appointments Slide22

Esophageal Varices

Occur In majority of patients with cirrhosis

Are varicosities develop from elevated pressure in veins that drain into portal system

Are prone to rupture—source of massive hemorrhage from upper GI tract and the rectum

Coagulation abnormalities increase bleeding & blood loss

Are the significant source of bleeding, In liver cirrhosis

Varices once form, they increase in size and bleed

First bleeding has a mortality rate of 30-50%Slide23

Esophageal varices

pathophysiology

Are dilated tortuous veins in submucosa of lower esophagus

Damaged liver—obstruction of portal venous circulation—portal hypertension

Because of obstruction—venous blood from intestinal & spleen tract seeks outlet through collateral circulation to right atrium—tortuous & fragile—rupture & bleed

Are life-threatening—hemorrhagic shock—leading to--decreased hepatic, cerebral, renal perfusion

Bleeding in GI—increased nitrogen load & serum ammonia—increased risk of encephalopathy

Contributing factors to hemorrhage: muscular exertion-heavy lifting; straining, sneezing-vomiting-coughing; irritating foods, reflux of stomach content (Alcohol); Salicylates Slide24

Esophageal varices

Diagnoses and assessment

Signs of bleeding: hematemesis, melena, deterioration in mental & physical states; history of alcohol abuse

Signs of shock: cool clammy skin, hypotension, tachycardia

Endoscopy, barium swallow, CT, angiography

In patients with cirrhosis—screening endoscopy every 2 years to identify & treat large varices

Careful monitoring can detect early signs of cardiac dysrhythmias, perforations, hemorrhage

After examinations:

Fluid are not permitted until gag reflex returns

Lozenges & gargles to relive throat discomfort if physiologically permitted

No oral intake in active bleedingSlide25

Portal hypertension measurement

Indications: dilated abdominal veins, hemorrhoids, splenomegaly,ascites

Indirect measurement of hepatic vein pressure is the most common

Insertion of a catheter with a balloon into antecubital or femoral vein

Then advanced under fluoroscopy to a hepatic vein

Fluid is infused to inflate the balloon

A wedged pressure is obtained by occluding blood flow

Pressure in the un-occluded vessel is obtained

Direct measurement: Laparotomy—needle in spleen—manometer

More than 20 ml saline is abnormal

Blood tests: liver function tests—serum aminotransferase, bilirubin, alkaline phosphate, serum proteins Slide26

Esophageal varices

Nursing and medical management

Bleeding from EV requires aggressive medical care, expert nursing, ICU for frequent vital signs measurement

Monitoring for indicators of hemorrhagic shock

Central venous pressure to evalute blood volume and arterial line

Oxygen to prevent hypoxia & maintain adequate blood oxygenation

IV fluids, electrolytes & expanders to restore blood volume

Transfusion of blood components may be required

Caution: overhydration—raise portal hypertension—increases bleeding

Indwelling urinary catheter to monitor urine output

Nonsurgical management minimizes risk of mortality; and because of poor physical condition related to severe liver dysfunction Slide27

Esophageal varices

pharmacologic therapy

In active bleeding; Vasopressin (Pitressin) produces constriction of splanchnic arterial bed—reducing blood flow in the portal system & decreases portal hypertension

Effectiveness of vasopressin: vital signs and blood-free gastric aspirate

Has anti-diuretic effect and hyponatremia may develop: monitor intake & output, electrolytes

Contraindicated in CADs; can be used with nitroglycerin

Side effects of vasopressin: ischemia & dysrhythmias; add nitroglycerin

Somatostatin & Octreotide (Sandostatin) effective in decreasing bleeding; has no vasconstrictive effect; have selective effects

Other medications: propranolol & nadolol, Beta blocker agents—decrease portal pressure—prevent bleeding episodes; Beta-blockers should not be used in acute hemorrage; just as prophylaxis

Nitrates (isordil): lower portal pressure by venodilation. Slide28

Esophageal varices

balloon tamponade

To control hemorrhage; exertion of pressure on the cardia by a double-balloon tamponade

Sengstaken-Blakemore tube has 4 openings: gastric aspiration, esophageal aspiration, balloon inflation (gastric & esophagus)

In stomach, Inflated with 100-200 ml of air; then pulled & traction applied; pressure in esophageal & gastric balloons is 25 – 40mm HG

Continuous low suctioning with hourly irrigation to detect bleeding

Irrigastion; and Pressure measurement every 2-4 hours to prevent esophageal injury & under-inflation

After several hours of no bleeding, can be deflated safely; if still no bleeding can be removed

Danger: displacement, inflation into oropharynx, rupture—pulmonary aspiration—ET tube to protect from aspiration ; necrosis—long periodSlide29

Esophageal varices

other medical management

Endoscopic sclerotherapy:

Injection of sclerosing agent into esophageal varices via fiberobtic endoscope—to promote thrombosis

After treatment observe for bleeding, perforation of esophagus, esophageal stricture, aspiration pneumonia

Antacids, Cimetidine or Pantoprazole (Protonix), a proton pump inhibitor may be given to counteract the sclerosing agent

Surgical management:

Variceal banding

Portal systemic shunt

Read management modalities (Table 39-2 P. 1134)Slide30

Esophageal varices

nursing actions

Continuous monitoring of physical, emotional & mental status

Assess vital signs & nutritional status

GI bleeding-elevated serum ammonia causing drowsiness to profound coma

Parenteral nutrition if complete rest of esophagus is indicated

Gastric suctioning to prevent straining & vomiting

Frequent oral hygiene & moist sponge to the lips to prevent thirst feeling

blood transfusions & Vit K therapy

Quiet environment & reassurance to relieve anxiety

Delirium secondary to alcohol withdrawal may occur; anxiety

Provide support & explanation about medical therapies Slide31

Hepatic encephalopathy and coma

Porto-systemic encephalopathy is a life-threatening complication occurs with liver failure

Is neuropsychiatric manifestation of hepatic failure associates portal hypertension or shunting of blood from portal into systemic circulation

Is a reversible metabolic form of encephalopathy

Can improve with recovery of liver function

Occurs in stages; (read Table 39-3, P 1132)Slide32

Hepatic encephalopathy

Pathophysiology

Occurs because

Inability of liver to detoxify toxic byproducts of metabolism

Shunting allows elements of portal blood to enter systemic circulation; collateral circulation

Ammonia is the major etiologic factor—enter the brain—increasing neuro-steroid synthesis; that stimulates gamma aminobutyric acid—causing depression of the CNS

Ammonia inhibits neurotransmission & synaptic regulations—producing sleep & behavior patterns that associate hepatic encephalopathySlide33

Hepatic encephalopathy

Pathophysiology

Major source of ammonia: enzymatic & bacterial digestion of dietary & blood proteins in GI

Other factors that increases ammonia are GI Bleeding; high protein diet; bacterial infection; uremia

With alkalosis / hypokalemia increased amount of ammonia is absorbed from GI.

Serum ammonia is decreased by:

Elimination of protein from the diet

Administration of antibiotics, Neomycin sulfate; decreases intestinal bacteria that covert urea to ammonia Slide34

Hepatic encephalopathy

assessment and diagnosis

EEG: generalized slowing, increased amplitude of brain wave

Early symptoms: minor mental changes and motor disturbances;

Confusion with altered mood & sleep pattern—tends to sleep during day with restlessness & insomnia at night

With progress, disorientation to time & place

Further progression: frank coma, Seizures

Other manifestations:

Asterixis: flapping tremor of hands; also hand writing becomes difficult, seen in stage 2,

Constructional apraxia: inability to reproduce a simple figure

Fetor hepaticus: fecal odor to the breath; is prevalent in extensive collateral circulation Slide35

Hepatic encephalopathy

medical management

Principle of management

Elimination of precipitating factors

Initiating ammonia-lowering therapy

Minimizing potential complications of cirrhosis & coma

Reversing the underlying liver disease

Lactulose: orally; or by nasogastric tube or enema if orally is not allowed

Reduces serum ammonia by promoting excretion of ammonia in stool

Monitor for watery diarrheal stool

Side effects: intestinal bloating & cramping

Can be diluted with fruit juice to mask sweet taste

Monitor for hypokalemia, dehydration

Other laxatives are not prescribed with lactulose intake Slide36

Hepatic encephalopathy

medical management

IV glucose to minimize protein breakdown

Vitamins to correct deficiencies, correction of electrolytes, K

Antibiotics: neomycin, Flagyl, Rifaximin to reduce ammonia forming bacteria

Additional principles of management

Assess mental status, daily handwriting

Daily intake & output, weight

Protein intake is moderately restricted—for comatose patients

Vital signs every 4 hours, serum ammonia daily

Assess potential sites of infection, peritoneum, lungs

Read page 1136 for further principles of management of encepahlopathySlide37

Hepatic encephalopathy

medical management

Moderate restriction of protein intake

Long-term restriction-less than 1 gm / Kg daily should be avoided

Vegetables or dairy proteins can be used; UP TO 12O Gms/day

Advised: Food high in proteins, meat, eggs, should be eliminated from the diet for short-term. (Read chart 39-5, P 1136).

Enteral feeding if encephalopathy persists

Monitor and correct electrolyte status; I & O

Discontinue Sedatives, Tranquilizers, analgesics

Flumazenil (Romazicon), a Benzodiazepine antagonist may be given to improve encephalopathy

Reduction of ammonia absorption by gastric suction, enema, antacidsSlide38

Hepatic encephalopathy

nursing management

Maintain safe environment to prevent injury, bleeding, infection

Prevent respiratory complications

Family support and reassurance

Teaching self care:

Watch for subtle signs of recurrent encephalopathy

Restriction of protein intake (0.8-1 gm/Kg daily), moderate protein-High caloric diet

Use of vegetable proteins

Use of lactulose to prevent constipationSlide39

Viral hepatitis

Is a systemic viral infection-necrosis & inflammation of liver cells produce a cluster of clinical, biochemical & cellular changes

Definitive types of hepatitis are A, B ,C,D,E

Is easily transmitted

Causes morbidity & prolonged loss of time from school or employment

Occurrence rate has been decreased because of A & B vaccines & public education Slide40

Hepatitis A Virus

HAV accounts for 20-25% of cases of clinical hepatitis

Caused by RNA virus; HAV

Is seen mainly in adult population

Transmitted through fecal-oral route-ingestion of food-liquid infected

More prevalent in overcrowding & poor sanitation places; as a result of poor hygiene

Virus is found in the stool of infected persons before symptoms onset & during the first few days of illness

Can be transmitted during sexual activity

Incubation period 2-6 weeks; M = 4 Weeks

Rarely progresses to acute liver necrosis / cirrhosis

No carrier state exists; the virus presents briefly in the serum Slide41

HAV

Assessment & diagnosis

Many Patients are anicteric (no Jaundice) & symptomless

If symptoms present: Resemble mild flulike of upper respiratory tract infection with Low-grade fever

Severe anorexia—an early symptom—result from release of toxins from the damaged liver or inability of the liver to detoxify abnormal products; Later; jaundice & dark urine

indigestion with epigastric distress, nausea, heartburn, flatulence

A strong aversion to taste of cigarettes

Symptoms tend to clear as jaundice reach the peak, 10-days after appearance

Liver & spleen enlargement; hepatitis A antigen in the stool

HAV antibodies in the serum Slide42

HAV

Prevention

Scrupulous hand washing, safe water supplies, proper control of sewage disposal

Vaccination: 2 times for adult, 18-year or older with 6-12 months apart

3 times for children with 1-month & 6-12 months apart

For those with no vaccination; IM of globulin during incubation period

Medical management:

Bed rest; acceptable & nutritious diet

In anorexia: Frequent small feedings supplemented by IV fluids with glucose

Optimal food & fluid intake to prevent weight loss & to speed recovery

Gradual progressive ambulation may hasten recovery

Teach patient to: Avoid alcohol; Have proper hygiene; Seek care

Read charts: 39-7 and 39-8; P. 1141 Slide43

Hepatitis B virus

Transmitted through blood; percutaneous or permucosal routes

Or from carrier mother to their infants at time of birth

Found in blood, saliva, semen, vaginal secretions; has a long incubation period; replicates in the liver & remains in serum

Who contract HBV develop antibodies and recover within 6 months

10% progress to carrier or develop chronic hepatitis—hepatocellular injury & inflammation

In elderly may progress to severe cell necrosis or hepatic failure; because of alteration in the immune system

So, factors that affect liver function should be eliminated; medications, alcohol

Risk Factors; read chart 39-9, P. 1141.Slide44

HBV

assessment & diagnosis

Symptoms similar to that of HAV; although are rare; much longer incubation period, 1-6 months

Arthralgia, rashes

Loss of appetite, dyspepsia, generalized aching , malaise & weakness

Jaundice with dark urine& light-colored stool may appear

Liver tender and enlarged; spleen is enlarged

Has different antigen: HBcAg; HBsAg, HBeAg, HBxAg

For each antibodies are developed: anti HBs, HBc, Hbe, HBx.

HBsAg appear in 90% ; if persists for more than 6 months; patient is a carrier Slide45

HBV

Prevention

General precaution to prevent transmission

Screening blood donors; Read preventing transmission, P. 1142.

Precautions related to healthcare providers

Immunization

Active immunization with Recombivax HB

for those at high risk: healthcare providers, hemodialysis patients, & those with hepatitis C

Has an effect for 5-10 years, booster doses for immunocompromised patients

Given IM in 3 doses; with 1 & 6 months apart, in the deltoid muscle

Passive immunity: HBIG, hepatis B immune globulin; for those exposed to HBV given within hours to few days Slide46

HBV

Medical management

Alpha-interferon: 5 million units daily or 10 million units 3 times a week for 16-24 weeks

Side effects: fever, chills, anorexia, nausea, fatigue

Delayed side effects: bone marrow depression, thyroid dysfunction, alopecia,; may necessitate reduction of the dose

Antiviral agents may be used: Lamivudine, Adefovir

Bed rest may be recommended until symptoms subsided;

Activity is restricted until liver enlargement & serum bilirubin are decreased

Maintain adequate nutrition; protein restriction may be required; if liver ability to metabolize proteins is impaired

In case of vomiting, hospitalization for fluid replacement Slide47

HBV

Nursing actions

Convalescence period: 3-4 months

Identify psychosocial responses

Teach and provide necessary steps in medical management

Read Table 39-4, P 1139 for other forms of Hepatitis

Slide48

Hepatic cirrhosis

Is a chronic disease in which liver tissues are replaced by diffuse fibrosis that disrupts structure & function of the liver

Types of cirrhosis:

Alcoholic cirrhosis: scar tissue surrounds portal area

Postnecrotic cirrhosis: there are broad bands of scar tissue, a result of acute viral hepatitis

Biliary cirrhosis: scarring around bile ducts, a result of chronic biliary obstruction Slide49

Hepatic cirrhosis

pathophysiology

Major causative factors: Alcohol consumption; nutritional deficiency; exposure to certain chemicals, carbon, arsenic, phosphorus

Alcoholic cirrhosis: episodes of liver cells necrosis—replaced by scar tissues—exceeds that of functioning liver tissue—re-generating liver tissue project from constricted areas giving hobnail appearance

Severity of symptoms characterizes cirrhosis as

Compensated: has vague symptoms, discovered accidently

Decompensated: results from failure of the liver to synthesize proteins, clotting factors, other substances; complications

Manifestations: Hepatic dysfunction manifestations; edema, GIT: distended abdominal BVs; vitamins deficiency & anemia; mental deterioration. READ TABLE 39-5 & CHART 39-11; P. 1147.Slide50

Hepatic cirrhosis

medical management

Depends on Symptoms

Antacids & antihistanie-2 to minimize GI bleeding

Vitamins and nutritional supplements promote healing

Diuretics for ascites; spironolactone to decrease ascites

Colchicine has anti-inflammatory effect may increase survival time

Some medications show antifibrotic effect, statins, diuretics, immunosuppressants

In ESLD, Herb milk thistle: has anti-inflammatory effect & antioxidant properties

Ursodeoxycholic acid for biliary cirrhosis to improve liver function Slide51

Hepatic cirrhosis

nursing actions

Read chart 39-12, P 1150-1157 for more details

Promoting rest:

To decrease demands on the liver & increases liver’s blood supply

Adjust position for respiratory efficiency, O2 therapy to prevent cell destruction;

Measures to prevent complications of immobility

Weight, and intake & output daily

Encourage gradual increase in activity once nutritional status improvesSlide52

Hepatic cirrhosis

nursing actions

Improving nutritional status:

In cirrhosis without edema, ascites or sign of hepatic coma; give a nutritious high protein diet supplemented by vitamins

In ascites, frequent small meals; consider patients preferences

In severe anorexia, enteral or parenteral feeding may be given

In patient with fatty stool (steatorrhea), give water-soluble vitamins: A, D & E

In impending coma decrease protein in the diet; if encephalopathy develops, restrict protein intake

Vegetable protein to meet the patient needs

Sodium restriction in ascitesSlide53

Hepatic cirrhosis

nursing actions

Providing skin care: because of subcutaneous edema, immobility, jaundice,

Frequent position changes

Avoid irritating soap & adhesive tape to prevent trauma

Lotion to sooth irritated skin, minimize scratching

Reducing risk of injury:

Prevent fall, padded side rails

Minimize agitation by orientation to time & place, explain all procedures

Minimize bleeding; electronic razor, soft-bristled toothbrush, pressure to all venipuncture